NDAR provides a single access to de-identified autism research data. For permission to download data, you will need an NDAR account
with approved access to NDAR or a connected repository (AGRE, IAN, or the ATP). For NDAR access, you need to be a research
investigator sponsored by an NIH recognized institution with federal wide assurance.
See Request Access for more information.

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You are now leaving the National Database for Autism Research (NDAR) web site to go to:

The filters you have selected from various query interfaces will be stored here, in the 'Filter Cart'.
The database will be queried using filters added to your 'Filter Cart', when multiple filters are
defined, each will be executed using 'AND' logic, so with each filter that is applied the result set gets smaller.

From the 'Filter Cart' you can inspect each of the filters that have been defined, and you also
have the option to remove filters. The 'Filter Cart' itself will display the number of filters
applied along with the number of subjects that are identified by the combination of those filters.
For example a GUID filter with two subjects, followed by a GUID filter for just one of those subjects
would return only data for the subject that is in both GUID filters.

If you have a question about the filter cart, or underlying filters please contact the help desk at
The NDA Help Desk

Date on which the interview/genetic test/sampling/imaging/biospecimen was completed. MM/DD/YYYY

Required field

interview_age

Integer

Required

Age in months at the time of the interview/test/sampling/imaging.

0 :: 1260

Age is rounded to chronological month. If the research participant is 15-days-old at time of interview, the appropriate value would be 0 months. If the participant is 16-days-old, the value would be 1 month.

gender

String

20

Required

Sex of the subject

M;F

M = Male; F = Female

bads1

Integer

Recommended

1. I stayed in bed for too long even though I had things to do.

0 :: 6

0= Not at all; 1; 2= A little; 3; 4= A lot; 5; 6= Completely

bads2

Integer

Recommended

2. There were certain things I needed to do that I didn't do.

0 :: 6

0= Not at all; 1; 2= A little; 3; 4= A lot; 5; 6= Completely

bads3

Integer

Recommended

3. I am content with the amount and types of things I did.

0 :: 6

0= Not at all; 1; 2= A little; 3; 4= A lot; 5; 6= Completely

bads4

Integer

Recommended

4. I engaged in a wide and diverse array of activities.

0 :: 6

0= Not at all; 1; 2= A little; 3; 4= A lot; 5; 6= Completely

bads5

Integer

Recommended

5. I made good decisions about what type of activities and/or situations I put myself in.

0 :: 6

0= Not at all; 1; 2= A little; 3; 4= A lot; 5; 6= Completely

bads6

Integer

Recommended

6. I was active, but did not accomplish any of my goals for the day.

0 :: 6

0= Not at all; 1; 2= A little; 3; 4= A lot; 5; 6= Completely

bads7

Integer

Recommended

7. I was an active person and accomplished the goals I set out to do.

0 :: 6

0= Not at all; 1; 2= A little; 3; 4= A lot; 5; 6= Completely

bads8

Integer

Recommended

8. Most of what I did was to escape from or avoid something unpleasant.

0 :: 6

0= Not at all; 1; 2= A little; 3; 4= A lot; 5; 6= Completely

bads9

Integer

Recommended

9. I did things to avoid feeling sadness or other painful emotions.

0 :: 6

0= Not at all; 1; 2= A little; 3; 4= A lot; 5; 6= Completely

bads10

Integer

Recommended

10. I tried not to think about certain things.

0 :: 6

0= Not at all; 1; 2= A little; 3; 4= A lot; 5; 6= Completely

bads11

Integer

Recommended

11. I did things even though they were hard because they fit in with my long-term goals for myself.

0 :: 6

0= Not at all; 1; 2= A little; 3; 4= A lot; 5; 6= Completely

bads12

Integer

Recommended

12. I did something that was hard to do but it was worth it.

0 :: 6

0= Not at all; 1; 2= A little; 3; 4= A lot; 5; 6= Completely

bads13

Integer

Recommended

13. I spent a long time thinking over and over about my problems.

0 :: 6

0= Not at all; 1; 2= A little; 3; 4= A lot; 5; 6= Completely

bads14

Integer

Recommended

14. I kept trying to think of ways to solve a problem but never tried any of the solutions.

0 :: 6

0= Not at all; 1; 2= A little; 3; 4= A lot; 5; 6= Completely

bads15

Integer

Recommended

15. I frequently spent time thinking about my past, people who have hurt me, mistakes I've made, and other bad things in my history.

0 :: 6

0= Not at all; 1; 2= A little; 3; 4= A lot; 5; 6= Completely

bads16

Integer

Recommended

16. I did not see any of my friends.

0 :: 6

0= Not at all; 1; 2= A little; 3; 4= A lot; 5; 6= Completely

bads17

Integer

Recommended

17. I was withdrawn and quiet, even around people I know well.

0 :: 6

0= Not at all; 1; 2= A little; 3; 4= A lot; 5; 6= Completely

bads18

Integer

Recommended

18. I was not social, even though I had opportunities to be.

0 :: 6

0= Not at all; 1; 2= A little; 3; 4= A lot; 5; 6= Completely

bads19

Integer

Recommended

19. I pushed people away with my negativity.

0 :: 6

0= Not at all; 1; 2= A little; 3; 4= A lot; 5; 6= Completely

bads20

Integer

Recommended

20. I did things to cut myself off from other people.

0 :: 6

0= Not at all; 1; 2= A little; 3; 4= A lot; 5; 6= Completely

bads21

Integer

Recommended

21. I took time off of work/school/chores/responsibilities simply because I was too tired or didn't feel like going in.

0 :: 6

0= Not at all; 1; 2= A little; 3; 4= A lot; 5; 6= Completely

bads22

Integer

Recommended

22. My work/schoolwork/chores/responsibilities suffered because I was not as active as I needed to be.

0 :: 6

0= Not at all; 1; 2= A little; 3; 4= A lot; 5; 6= Completely

bads23

Integer

Recommended

23. I structured my day's activities.

0 :: 6

0= Not at all; 1; 2= A little; 3; 4= A lot; 5; 6= Completely

bads24

Integer

Recommended

24. I only engaged in activities that would distract me from feeling bad.

0 :: 6

0= Not at all; 1; 2= A little; 3; 4= A lot; 5; 6= Completely

bads25

Integer

Recommended

25. I began to feel badly when others around me expressed negative feelings or experiences.

This page displays the data structure defined for the measure identified in the
title and structure short name. The table below displays a list of data elements
in this structure (also called variables) and the following information:

Required: This column displays whether the element is Required for valid submissions,
Recommended for valid submissions, Conditional on other elements, or Optional

Description: A basic description

Value Range: Which values can appear validly in this element (case sensitive for strings)

Notes: Expanded description or notes on coding of values

Aliases: A list of currently supported Aliases (alternate element names)

For valid elements with shared data, on the far left is a Filter button you can use to
view a summary of shared data for that element and apply a query filter to your Cart
based on selected value ranges

At the top of this page you can also:

Use the search bar to filter the elements displayed. This will not filter on the Size of Required columns

Filters enable researchers to view the
data shared in NDA before applying for access or for selecting
specific data for download or NDA Study assignment. For those with
access to NDA shared data, you may select specific values to be
included by selecting an individual bar chart item or by selecting a
range of values (e.g. interview_age) using the "Add Range" button.
Note that not all elements have appropriately distinct values like
comments and subjectkey and are not available for filtering.
Additionally, item level detail is not always provided by the
research community as indicated by the number of null values given.

Filters for multiple data elements within
a structure are supported. Selections across multiple data structures
will be supported in a future version of NDA.